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fe1e8c3e96
This patch extends x86 headers to enable 5-level paging support. It's still based on <asm-generic/5level-fixup.h>. We will get to the point where we can have <asm-generic/pgtable-nop4d.h> later. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-arch@vger.kernel.org Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20170313143309.16020-2-kirill.shutemov@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
37 lines
707 B
C
37 lines
707 B
C
#ifndef _ASM_X86_PGTABLE_2LEVEL_DEFS_H
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#define _ASM_X86_PGTABLE_2LEVEL_DEFS_H
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#ifndef __ASSEMBLY__
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#include <linux/types.h>
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typedef unsigned long pteval_t;
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typedef unsigned long pmdval_t;
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typedef unsigned long pudval_t;
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typedef unsigned long p4dval_t;
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typedef unsigned long pgdval_t;
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typedef unsigned long pgprotval_t;
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typedef union {
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pteval_t pte;
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pteval_t pte_low;
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} pte_t;
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#endif /* !__ASSEMBLY__ */
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#define SHARED_KERNEL_PMD 0
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/*
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* traditional i386 two-level paging structure:
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*/
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#define PGDIR_SHIFT 22
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#define PTRS_PER_PGD 1024
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/*
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* the i386 is two-level, so we don't really have any
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* PMD directory physically.
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*/
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#define PTRS_PER_PTE 1024
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#endif /* _ASM_X86_PGTABLE_2LEVEL_DEFS_H */
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